Originally Posted by UNKNOWN_370

No doubt. That's what forums are for. Going stock is good most of the time. But some aftermarket parts are actually better than stock. One thing I would want you to consider before investing in nearly a ground to almost $2000 on a stock nisssan spoiler that doesn't help with downforce much is that same amount of money can help you gain good power or drastically improve handling. For 2k you can add a good coilover kit or you can get eibach proline springs with swaybars and a pro-alignment. And still have money left over for k &n filters, silicone hoses,HFC AND Y PIPE, or you can buy a complete exhaust and intake kit if you want to go that route? If you have base rims? Some aftermarket rims and wider tires would definately increase grip and handling. A proper LSD is a must as well. This is something base cars are lacking.
I don't want you to take my suggestions as knocking on your plans. But the stock NISMO spoiler is expensive. For that money there are plenty of much more useful first mods that can gain a good amount of performance.